Finding the Third Proportional to 99,434.25 and 204,606

Step by Step Solution

1. Step 1: Write the proportion equation
   99,434.25 : 204,606 = 204,606 : x
2. Step 2: Convert to fraction form
   99,434.25/204,606 = 204,606/x
3. Step 3: Cross multiply
   99,434.25x = 204,606 × 204,606
4. Step 4: Simplify right side
   99,434.25x = 41,863,615,236
5. Step 5: Solve for x
   x = 41,863,615,236/99,434.25
6. Step 6: Final answer
   x = 421,018.06